Vicor's PI33XX Cool-Power® ZVS Buck Regulator series are high efficiency, wide input range DC-DC ZVS-Buck regulators. Integrating controller, power switches, and support components all within a high density, low profile System-in-Package (SiP). The PI33XX requires only an external inductor and minimal capacitors to form a complete DC-DC switching mode buck regulator. With its high switching frequency operation, it reduces the size of the external filtering components, improves power density, and enables fast dynamic response to line and load transients.